George R.R. Martin has joined Twitter, but as with the characters he writes, it’s probably best not to get too attached.

In his first and only tweet, the author, whose “A Song of Ice and Fire” novels serve as the basis for HBO’s blockbuster fantasy series “Game of Thrones,” says, “I don’t tweet all that much” and urges readers to visit his LiveJournal.

Martin kicked off that blog nine years ago with a similar warning: “Days, weeks, and even months may go by with no new entries,” he wrote in the first post. “It probably means I’m busy doing stuff.” He titled the blog “Not a Blog,” emphasizing, “I don’t have time” to write one.

He was true to his word. The next post went up more than three months later.

In recent months, his LiveJournal posts have included peeks at his upcoming work, notifications about his appearances, details about events at a theater he owns in Santa Fe, N.M., plugs for fundraisers, “Game of Thrones” news, thoughts on Memorial Day and a stern admonition that, despite rampant parodyaccounts, he’s not on Facebook or Twitter. (That last one is a little outdated.)

Since starting that sporadically updated blog – or, um, non-blog – Martin has indeed been busy doing stuff, including writing. Two of his “A Song of Ice and Fire” books have been published in that time, as have two other novels and a handful of novellas and novelettes, not to mention short stories he’s written and collections he’s edited.

As of Tuesday afternoon, his Twitter followers number 65,000.

Click through the gallery above for a detailed look at “Game of Thrones’ ” fourth season, which concludes its 10-episode run on Sunday.